Method of manufacturing joints of bracelets.



v 110457.373. I I PATENTEDJUNE18.190 7.

awmeems.

METHOD OF MANUPAGTURING JOINTS 0F BRACELETS. APPLIOAIION rmzn D20, 6, 90a.

WITNESSES INVENTOR k M I 0 ATTORNEY UNITED STATES PATENT OEEIOE.

. CHARLES WRIGGINS, OF IRVINGTON, NEW JERSEY, ASSIGEOE To LONG &

KOCH, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

METHOD OF MANUFACTURING JOINTS OF BRACELETS.

Specification of Letters Patent.

Patented June 18, 1907.

Application filed December 6,1906. Serial No. 346,549.

I citizen of the United States, residing at Irvington, in the county of Essex and Stateof New Jersey, have invented certain new and useful Improvements in Methods of Manufacturing Joints of Bracelets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention is designed to provide an improved method for making and assembling the parts that go to make up the hinge of a jointed bracelet, and to furnish a bracelet hinge that is more easily assembled than in the old method and that does the same function when complete, having cost less to manufacture.

I take a plate of metal stam ed up as in Figure 1, this being larger than'tihe cross-section of bracelet to which it is to be applied, and consisting of a flat portion and a grooved edge 11. A du licate of this plate is used in conjunction t erewith. The two pieces forming the grooved lates are then provided, as in Fig. 2, with t e intle-blocks 12, these being suitably dispose to allow'the plates to be fitted close together and this arrangement permitting the insertion of a suitable pintle in the perforations 13 in the pintle-blocks. The grooved plates and the blocks are then assembled and the two members 14 and 15, of the bracelet, grooved, as at 16 to receive the grooved portions 11 of the plates, are placed on opposite sides of the hinge structure, as in Fig. 3, and then soldered or suitably secured thereto, the soldering 17 being preferred. The assembled parts at this stage are shown in Fig. 4. The edges protruding from the bracelet are now filed off and the .whole finished up as in Fig. 5, the lines between the elements being hidden by the finishing and only shown in Fig. i

5, to Show the relation of the parts. The plates 10, grooved portions 11, pintle-blocks 12 and the intle 18,, can all be finished off even with tffe surface of the piece of jewelry to be jointed and a neat finish is the result.

Having thus described my invention, what I claim is 1. The improved method of forming a hinge for jewelry, comprising the provision of a pair of plates having one edge of each plate grooved, supplying pintle blocks to the opposed grooves, assembling the grooved plates so supplied, inserting a pintle through the pintle blocks, and then securing the members to be hinged to the outside faces of the plates. I

2. The improved method of forming a hinge for jewelry, comprising the provision of a pair of plates made of sheet metal and each plate having a groove on one edge, supplying each groove with suitably disposed intle blocks, assembling the plates with the blocks in place, soldering the members to be hinged to the outside of the plates, then inserting a pintle in the blocks, and then cutting off the hinge to the contour of the article lunged.

In testimony, that I claim the foregoing, I have hereunto set my hand this 5th day of December 1906.

. CHARLES IVRIGGINS. Witnesses:

WM. H. CAMFIELD, E. A. PELL. 

